Combined expander and flanger for bung-hole bushings.



No. 810,431. PATENTED JAN. 23, 1906.

` P. PFLUGER & B. CHRISTBNSEN. COMBINED EXPANDBR AND FLANGER FOR BUNG'HOLE BUSHINGS.

APPLICATION FILED FEB.Z0, 1904. BENEWBD SEPT.'20. 1905.

F51 l 1 #n ffm/H @y w v UNITED STATES lPAT-nerr OFFICE.

FRANK PFLUGER AND EMIL OHRISTENSEN, OF PORTLAND, OREGON.

- COMBINED EXPANDER AND FLANGER FOR BUNG-HOLE BUSHINGS.

Specification of Letters Patent.

Patented Jan. 23, 1906.

Application led February 20, 1904:. Renewed September 20, 1905. SerialNo. 279,312.

To a/ZZ whom t may concern:

Be it known that we, FRANK PFLUGER and EMIL CHRIsTENsEN, citizens of theUnited States, residing at Portland, in the county of Multnomah andState of Oregon, have invented a new and useful Combined Expander andFlanger for Bung-Hole Bushings, of which the following is aspecification.

This invention relates to a combined expander and flanger for use inapplying bushings to bung-holes; and it consists in an improved form ofimplement especially designed for the application of bushings of thecharacter described in our companion application, Serial No. 193,156.

The principal object of the present invention is to provide an implementby means of which bung-hole bushings of suitable character may beapplied to bung-holes quickly with the expenditure of a minimum amountof energy and without injuring the bushing in applying it.

A further object of the invention is to improve the construction ofimplements of the character specified by eliminating as completely aspossible the friction of operation, adapting them for ready insertioninto and withdrawal from the bung-hole, and so constructing andarranging the parts thereof that the implement will prove durableinservice.

Vith the objects above mentioned and others in view, which will appearas the invention is more fully disclosed, the same consists in the novelconstruction and combination of parts of a bung-hole-bushing flanger andexpander, as hereinafter fully described and claimed, and-illustrated ina preferred form of embodiment in the accompanying drawings, formingpart of this specification, it being understood that changes in theform, proportions, and exact Inode of assemblage of the elementsexhibited maybe made without departing from the spirit of the inventionor sacrificing the advantages thereof.

In the drawings, Figure 1 is a view in elevation of the bushing expanderand flanger, showing the mode ofl introducing the same into a bung-hole,the portions of the stave adjacent to the bung-hole and the bung-holebushing being shown in section and the handwheel by means of which thefeed-screw is advanced and retracted being omitted to save space. Fig. 2is a view in elevation of the bushing expander and flanger, showing theparts thereof in the position occupied at the end of the expanding andfianging operation, the portions of the stave adjacent to the bungholeand the bushing being shown in section. Fig. 3 is a view, partly inelevation and partly in` section, of the stock of the bushing'expanderand flanger. Fig. 1 is a sectionalview on the line 4 4 of Fig. 3. Figyis a detail view of the lower portion of the device for shifting theposition of the pivotal expander member. Y

- Referring to the drawings, in which corre`= sponding parts aredesignated by similar characters of reference throughout the severalviews, 1 designates the stock or mandrel of the implement,A The stock 1is longitudinally bored in the upper end land is internally threaded inthe bore for engagement with the threads upon a feed-screw 2, which isoperative in the bore of the stock and is preferably provided at itsupper end with a square shank 3, upon which a hand-wheel 4 or othersuitable device for imparting rotary movement thereto is fitted. Theupper end of the stock 1 is externally squared as shown at 5, so thatthe stock may be fitted into a suitable socket or engaged by a wrench.Below the bore in the upper end the stock 1 is provided with alongitudinal slot 6, extending entirely through the stock and affordingspace for the movement within the stock of the flanging and expandingdevices hereinafter to be described. At right angles to the slot 6 andextending outward slightly below the middle point of the stock a slot-7is formed, which also extends entirely through the stock. In the upperportion of the slot 6 an axle S, comprising a fiat bodyportion 9 andgudgeons 10, is arranged for movement longitudinally of the stock, theaxle itself being disposed transversely, as shown in the drawings. Theaxle 8 is secured in position in the slot by means of a round axle orpin 11, which extends through the slot 7 and is secured in a centralopening in the axle 8. The axles 8 and 11 form the supports forpressure-rollers 12, which engage with the outer flange of thebuiig-hole'bushing during the operation of expanding and flanging thebushing at its inner end, as shown in Fig. 1.

At the lower end of the stock 1 an axle 13 is disposed transverselythrough the slot 6 and is secured therein by means of a pivotpin 14,which extends through the stock from side to side and serves as an axisabout which the axle 13 may be turned when it is desired to bring theaxle into approximate alinement IOO IIO

with the stock in order to introduce the stock into the bung-hole. rIheaxle 13 is provided at its ends with gudgeons 15, upon which concaveHanging and expanding rollers 16 are rotatably mounted, and the stock 1is recessed upon one side, as shown at 17, to receive one of the rollers16 when the axle is turned into the position shown in dotted lines inFig. 1. In order to swing the axle 13 into approximate alinement withthe stock and to restore the axle to its normal transverse position, theslot 6 is wider at one side, as shown at 19, and a bridle 20,consisting, preferably, of a single piece of wire bent into invertedsubstantially U shape to present a handle portion 21 and parallelconnecting portions 22, provided at their lower ends with inwardly-bentterminals for engagement with an opening provided therefor in the axle13, is arranged in the channel 19.

When the bushing expander and Hanger, as above described, is to be usedin securing the bushing in position, the bridle 2O is pressed downwardby pressure upon the handle portion 21 until the axle 13 takes theposition shown in dotted lines in Fig. 1, the concave vroller at thethen upper end of the axle being disposed within the recess 17 in thestock and the roller at the opposite end being brought approximatelyinto alinement with the lower end of the stock, so that no difficultywill be experienced in passing the lower end of the stock through thebushing. Before introducing the stock into the bung-hole the feedscrew 2is withdrawn sufficiently to permit the axles S and 11 to rise to theupward limit of their movement in order to give sufficient play for theaxle 13 when the bridle 20 is raised to restore the axle to its normaltransverse position in the stock. When the axle 13 has been broughtintov its normal transverse position within the cask or other vessel inwhich the bung-hole is formed, the feedscrewis turned in the bore of thestock to force the axle 8 and the structures connected therewithdownward until the rollers 12 contact with the flange at the outer endof the bushing, and the concave Hanging and expanding rollers 16 arebrought into contact with the inner end of the bushing. The stock isthen rotated in the bung-hole and the feed-screw is simultaneouslyoperated to force the axles 8 and 13 closer together. This simultaneousmovement of the stock in the bung-hole and the feed-screw in the stockcauses the inner end of the bushing to be expanded and formed into anoutwardly-disposed Hange which engages with the inner surface of thestave adjacent to the bung-hole and holds the bushing securely in thebung-hole. As the rollers 16 travel around the bushing at the same timethat they are drawn upward toward the pressure-rollers 12, a uniformaction is produced upon all parts of the inner end of the bushing andthe expanding and Hanging take place so gradually and uniformly that notearing or splitting of the inner end of the bushing results. Therotative movement of the stock within the bung-hole during the operationof expanding and Hanging the bushing at itsv inner end may be broughtabout by turning the stock with a wrench applied to the squared upperend of the stock, the cask or other vessel being held stationary, or thestock may be clamped in a stationary socket and the cask or other vesselmay be turned about the stock, any suitable rotating support for thecasl or other vessel being used to effect the turning movement of thevessel.

After the expanding and Hanging operationhas been completed and theHange at the inner end of the bushing is brought into close contact withthe inner surface of the stave the implement may be withdrawn from thebung-hole by first withdrawing the feedscrew to permit the separation ofthe axles 8 and 13 to a sufficient distance and then swinging the axle13 into approximate alinement with the stock by lowering the bridle 20to the position shown in dotted lines.

A special feature of the operation of the bushing expander and Hanger asabove described is the rolling contact of the pressurerollers and theexpanding and Hanging rollers with the outer and inner ends of thebushing, respectively. By using rollers for the pressure members and theHanging members of the implement the friction incident to the operationthereof is reduced to a minimum, and the time in which the inner end ofthe bushing may be successfully expanded and flanged is accordinglyreduced.

A further advantage resulting from the use of rollers for pressuremembers and expanding members lies in the gradual application of thenecessary force to the bushing, the gradual application of the forcebeing especially desirable in lessening the strain upon the bushingduring the expanding and Hanging operation and giving opportunity forthe metal to How to the extent necessary to produce a uniform flange.

In the construction of the combined expander and Hanger any suitablematerial may be employed ,',but steel is preferable in many respects, aswhen constructed of steel the implement has a maximum of durability anddoes not become distorted or ,inoperativefrom the strains to which it issubjected in use.

Having thus described the construction and operation of our invention,what we claim as new, and desire to secure by Letters Patent, is

1. In a device of the character specified, a stock, means carried by thestock for applying pressure to one end of a bushing, and Hanging meansalso carried by the stock and including an axle having rollers forengage- IOC IIO

ment with the other end of the bushing, said axle being held normally ina position transverse to the stock and capable of being adjusted to aposition of approximate alinement with the stock.

2. In a device of the class described, a stock, a'pressure devicecarried by the stock and movable thereon, means for adjusting saidpressure device longitudinally of the stock, and a flanger including anaxle carried by the stock and provided with rollers for engagement withthe inner end of a bushing, said axle being disposed transversely of thestock during the operation of the device and capable of being adjustedinto approximate alinement with the stock to permit of the device beinginserted through a bushing.

3. In a device of the character specified, a longitudinally-slottedstock, a pressure device disposed transversely of said stock in saidslot, means for adjusting said pressure device longitudinally of thestock, and al flanger also carried by said stock in the slot thereof andheld normally in a position transverse to the stock, said flanger beingadjustable into approximate alinement with the stock.

4. In a device of the class described, a stock, a feed-screw threaded insaid stock, a pressure device mounted to move longitudinally upon thestock and engaged with. the feed-screw for movement therewith, and aflanger carried by the stock independently of the feed-screw forengagement with the inner end of a bushing.

5. In a device of the class described, the combination with a rotatablelongitudinallyslotted stock having a bore intersecting the outer end ofthe slot, and provided with a threaded portion of a presser memberadjustable longitudinally within the slot and proj ected at oppositesides thereof externally of the stock for engagement with one end of thebushing, a screw-threaded adjusting device fitted in the bore of thestock and engaging the screw-threadedportion thereof for controlling thepresser device, and aflanger member carried by the stock with thepresser member located between the flanger and the screw-threadedadjusting means.

6. In a device of the class described, the combination of a rotatablelongitudinallyslotted stock having one edge of the slot enlarged, ailanger pivoted within the slot and capable of being tilted intosubstantial alinement with the stock, an adjusting device slidable inthe enlarged edge of the slot with one end connected to the flanger andits opposite end provided with an outwardly-directed handle, a pressermember slidable within the slot with its opposite ends projectedexternally of the stock, and means carried by the stock for adjustingthe presser member therein to draw said member and the fianger intoengagement'with the opposite end of a bushing.

7. In a device of the class described, the combination of a rotatablestock which is bifurcated at one end and provided at its opposite endwith a longitudinal bore intersecting the back of the bifurcation andhaving a threaded portion, one edge of the bifurcation being enlarged toform a channel, an axle pivoted within and adjacent the open end ofthebifurcation and provided with terminal Hanger-rollers, another axleslidable within the bifurcation and projected externally at oppositesides of the stock, rollers carried by the projected ends of said axle,a longitudinally-slotted controlling device slidable in the channel ofthe stock with its slot receiving the adjacent projected end of theslidable axle, one end of the controlling device being connected to thepivoted axle and its opposite end being formed into anoutwardly-directed handle, and an adjusting-screw fitted in thescrew-threaded bore of the stock in operative relation with the slidableaxle.

In testimony that we claim the foregoing as our own we have heretoaffixed our signatures in the presence of two witnesses.

FRANK PFLUGER. EMIL CHRISTENSEN.

Witnesses:

R. L. STEVENS, E. G. BURKE.

